uploader-frontend (npm) · Malicious Code
Affects uploader-frontendSource GCVE Database
Malicious package : remove uploader-frontend and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 17:12 UTC
Malicious package
Published to npm · OSV MAL-2026-12491
What to do
Remove uploader-frontend from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmuploader-frontend | Affected
| Fixed in– |
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Description
The npm package 'uploader-frontend' version 9.9.11 contains malicious code that executes during installation. The install script runs code that collects the installer's OS username, hostname, and current working directory name, then encodes this information as a DNS subdomain and performs a DNS lookup to an attacker-controlled domain, effectively exfiltrating installer identity data. The malicious behavior is obfuscated by reconstructing API names and the destination domain at runtime. The package falsely advertises legitimate functionality but only implements this data exfiltration beacon.